Comparison of Yamaha YZ250 2010 and Yamaha YZ250 2009 [S]ave
| Attribute |  Yamaha YZ250 2010 × |  Yamaha YZ250 2009 × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2009 |
| Make | Yamaha | Yamaha |
| Model | Yamaha YZ250 | Yamaha YZ250 |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Keihin® PWK38S | Carburettor. Keihin® PWK38S |
| Displacement (cm³) | 249 | 249 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 66.4 | 66.4 |
| Stroke (mm) | 72 | 72 |
| Gearbox | 5-speed | 5-speed |
| Ignition | CDI | CDI |
| Compression | 9.2:1 | 9.2:1 |
| Chassis | ||
| Front suspension | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork |
| Rear suspension | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock, 12.4-in travel |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 245 |
| Front tyre | 80/100-M21 | 80/80-M21 |
| Rear tyre | 110/90-M19 | 110/90-M19 |
| Front wheel travel (mm) | 300 | 300 |
| Other | ||
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,481 | 1,481 |
| Kerb weight (kg) | 103.9 | 103.9 |
| Overall height (mm) | 1,306 | 1,306 |
| Overall length (mm) | 2,177 | 2,177 |
| Overall width (mm) | 828 | 828 |
| Seat height (mm) | 993 | 993 |
| Ground clearance (mm) | 381 | 381 |
| Performance | ||
| Fuel capacity (l) | 7.94 | 7.94 |
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